I have navigated to maps application from myapplication using following code
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
when i press back button in maps it navigates to my application.
When i minimize maps application and open maps from recently open list apps and press back button, My application is not opening.
Could any help me on this ?
Do i need to add any flags to intent to open my application in second case ? or any idea please suggest me..
It seems to me you should set android:alwaysRetainTaskState true in your root activity.
Related
My app has a log in MainActivity. By tapping on a link a SecondActivity starts and the user can sign up. After the user completes the form an email is sent with a deep link to activate the account. When the user taps that link the MainActivity starts again indicating that the account was activated and that the user can log in. The problem is that in android 4.3 the previous activities get clear, but not in Android 5:
This is part of the code I'm using when the user taps the deep link:
Intent toLaunchMainActivityAgain = new Intent(this, MainActivity.class);
toLaunchMainActivityAgain.addFlags(toLaunchMainActivityAgain.FLAG_ACTIVITY_CLEAR_TOP);
toLaunchMainActivityAgain.setFlags(toLaunchMainActivityAgain.FLAG_ACTIVITY_MULTIPLE_TASK);
toLaunchMainActivityAgain.setFlags(toLaunchMainActivityAgain.FLAG_ACTIVITY_NEW_TASK);
When you are trying to launch another activity, call below to make sure Android Task Manager doesn't store the activity you are leaving
startActivity(new Intent(MainActivity.this, OtherActivity.class)
.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK));
When I want to then go back to another activity from my current one, I simply call
finish();
I have an activity that takes an "intent" to the browser, I see the page on which connect and when I return to my work I press the button to go back to my activity. The problem is that it gets stuck in the browser. Is there any solution? Thank you very much for everything and sorry for my English.
here is my code
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(/*my url*/));
intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
intent.addFlags(Intent.FLAG_FROM_BACKGROUND);
startActivity(intent);
The Intent you used is just to open browser. If you want to handle the result then you need to consider implementing Custom WebView Activity. So that you can do what ever you like with the browser.
Ahhhh... My bad.!!!!.. I have checked my manifest file ..and I have put NoHistory=true on my parent actvity.
I was trying to start activity from a service without showing it to the user, keep it work in background, I was searching a lot about that, and I found two ways to do that
by starting the activity then start the home main screen like this :
// this is for lunch the app
Intent LaunchIntent = getPackageManager().getLaunchIntentForPackage("com.example.some");
// this is for going back
Intent startMain = new Intent(Intent.ACTION_MAIN);
startMain.addCategory(Intent.CATEGORY_HOME);
startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// lets do it !
startActivity(LaunchIntent);
startActivity(startMain);
by putting a going back function in the activity itself, like this :
context.getActivity().moveTaskToBack(true);
BUT, in these two ways I have problems
in the first one, if the user was on another app, this operation will close his app and get him to home , more than that, some times the my activity not started but just be in the back without working i.e. if there was a song it isn't played
in second one, when the my activity started a black screen will appear for a second before it back to the home or previous user app
So , simply , this is what I want :
I want a behaviour equal to : the user open my app then he press back button, but without show that the app started unless he see the background apps
how to do that ?
For that, you can use an android Service.
See docs - http://developer.android.com/guide/components/services.html
I have two applications, A and B. In app A I've added a button which opens app B.
When the button is clicked I want to open App B if it's not already running, otherwise I want to bring the app to the front.
This is the code I use:
Intent intent = getPackageManager()
.getLaunchIntentForPackage(
"com.myapp.something");
if (intent != null) {
intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
The code seems to work, but the problem is that if I open app B from app A (using this code) and then click directly the icon of App B, I get two instances of the app, which is undesired.
How can I open the app, as the code does, but also get the same instance even if the app's icon is clicked?
Add Intent.FLAG_ACTIVITY_CLEAR_TOP
I'm working on an app that launches the browser activity to perform a Twitter OAuth authorization. This process uses a callback url which will re-launch the activity that started the browser activity in the first place.
My problem is that the browser pages remain in the history stack and when the user then clicks back from the preferences activity that launched the browser in the first place, they don't go back to the app's main activity, but instead are brought back to the browser. I've tried adding flags to the launching intent to prevent history and reset on clear, but it doesn't seem to work when running on my phone, only on the emulators.
Here is the code I'm using to launch the browser activity:
Intent webIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(authUrl));
webIntent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
webIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
webIntent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
ctx.startActivity(webIntent);
Anyone have any idea what might be wrong?
Set the activity flag to Intent.FLAG_ACTIVITY_CLEAR_TOP after starting it. This way, the task will be deleted form the app stack so your main activity remains the top one on every new launch:
ctx.startActivity(webIntent);
browserIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
call
finish();
after
ctx.startActivity(webIntent);
Hi i have the same problem at the moment. I think the solution is to start the activity you want to return to with a special flag:
Intent intent = new Intent(this, acticityToReturnTo.getClass());
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
startActivity(intent);
The problem is that is does not work (on 1.6 at least).. But maybe someone finds a solution for this. I think FLAG_ACTIVITY_CLEAR_TOP is exactly what we.
I found that Intent.FLAG_ACTIVITY_NO_HISTORY works only if the browser was not running before. If I restart Android and run my app which call browser everything work well. But when I start browser before my app, browser will stay in history.
Here is related question also, but with no really working solution
How can I do that in Android. Activity -> WebBrowser -> Acrivity, but Press Back not see the WebBrowser